Science

Friday, 14 August 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Snow
Snow is formed from the finest droplets of over-cooled water in clouds.
These droplets attach themselves to nuclei of crystallization, which can be, for example, dust parti ...
Brain
About 25% of the body's cholesterol is contained in the brain.
NASA
The first Crew Dragon launch took place on May 30th, 2020.
Crew Dragon Endeavour was launched atop a Falcon 9 rocket, and docked at the ISS carrying Doug Hurle ...
Earth
The Earth, like all planets in space, is doomed to destruction.
Life on the surface of our planet has been wiped out many times by great cataclysms called great ext ...
Mushrooms
Fungi are a separate kingdom, more closely related to animals than to plants.
This is established on the basis of phyologenesis (origin), biochemistry and anatomy. Fungi are reco ...
Silver
Silver has been used in photographic technology.
It is used there to obtain silver halides (primarily silver bromide) used as photosensitive substances.
Graphene
Graphene is an allotrope of carbon consisting of a single layer of atoms arranged in a two-dimensional honeycomb nanostructure (an intermediate-sized structure between microscopic and molecular structures).
Allotropy is the phenomenon of the existence of different varieties of the same chemical element in ...
Graphene
Although graphene consists of an element that is abundant on Earth, its production costs are high.
This is a major obstacle to graphene finding mass application in many fields. For now, only small amounts are produced.
NASA
In the case of finding life on other planets, NASA established an Office of Planetary Protection.
Nicotine
Nicotine is an organic chemical compound (C10H14N2) from the group of pyridine alkaloids.
Under natural conditions, nicotine occurs in the leaves and roots of noble tobacco (Nicotiana tabacum), which is most often used in the tobacco industry. The leaves contain 1 to 3 percent of nicotine.